7. If more than one hearing-aid acoustician carries on professional activities within a partnership or joint-stock company, a representative and a substitute must be designated to act on behalf of all the hearing-aid acousticians practising in the partnership or joint-stock company to satisfy the conditions set out in sections 4 and 6.
The representative and the substitute must be hearing-aid acousticians and carry on professional activities in Québec within the partnership or joint-stock company.